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<head><meta charset="utf-8"><title>weekly meeting 2019-06-06 #54818 · t-compiler · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/index.html">t-compiler</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html">weekly meeting 2019-06-06 #54818</a></h3>

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<a name="167470261"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167470261" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167470261">(Jun 06 2019 at 10:42)</a>:</h4>
<p>Hi <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span> ; the triage meeting will be starting in about 3 hours and 15 minutes</p>



<a name="167470300"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167470300" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167470300">(Jun 06 2019 at 10:43)</a>:</h4>
<p>As usual I will be doing <a href="#narrow/stream/131828-t-compiler/topic/pre-meeting.20triage.202019-06-06.20.2354818/near/167470290" title="#narrow/stream/131828-t-compiler/topic/pre-meeting.20triage.202019-06-06.20.2354818/near/167470290">pre-triage in a parallel topic</a></p>



<a name="167470751"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167470751" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167470751">(Jun 06 2019 at 10:51)</a>:</h4>
<p>We didn't have a meeting last week. Skimming over the WG check-in schedule, it seems lke we haven't heard from wg-parallel-rustc, wg-mir-opt, nor wg-pipelining in a while.</p>



<a name="167470791"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167470791" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167470791">(Jun 06 2019 at 10:52)</a>:</h4>
<p>I know <span class="user-mention" data-user-id="124287">@mw</span> is on leave. <span class="user-mention" data-user-id="116466">@Zoxc</span> , are you around? Is there anything to report about parallel-rustc?</p>



<a name="167470851"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167470851" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167470851">(Jun 06 2019 at 10:52)</a>:</h4>
<p>And for WG-mir-opt: <span class="user-mention" data-user-id="124288">@oli</span> , are you around today?</p>



<a name="167470894"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167470894" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167470894">(Jun 06 2019 at 10:53)</a>:</h4>
<p>(I'm hesitant to JIT-schedule an update from WG-pipelining because the two leads of that WG do not typically come the rustc triage. Better to give them more advance notice, I think.)</p>



<a name="167470904"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167470904" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167470904">(Jun 06 2019 at 10:54)</a>:</h4>
<p>I'm around, but maybe not at the beginning of the mtg</p>



<a name="167470949"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167470949" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167470949">(Jun 06 2019 at 10:54)</a>:</h4>
<p>can I have a slot in the end?</p>



<a name="167470960"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167470960" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167470960">(Jun 06 2019 at 10:54)</a>:</h4>
<p><span class="user-mention" data-user-id="124288">@oli</span> sure, the WG checkin's rarely start until the half-hour mark, at the earliest, right?</p>



<a name="167470966"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167470966" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167470966">(Jun 06 2019 at 10:54)</a>:</h4>
<p>and since we missed a meeting last week, I can imagine triage taking up the full 30 minutes easily</p>



<a name="167470974"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167470974" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167470974">(Jun 06 2019 at 10:54)</a>:</h4>
<p>ah cool, I'll do the mir-opt check-in then</p>



<a name="167474605"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167474605" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Zoxc <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167474605">(Jun 06 2019 at 11:59)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> I'm half awake, but there's nothing interesting to report</p>



<a name="167478672"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167478672" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167478672">(Jun 06 2019 at 12:57)</a>:</h4>
<p>oh right I should make sure Zulip is working in case <a href="https://github.com/rust-lang/rust/issues/61539" target="_blank" title="https://github.com/rust-lang/rust/issues/61539">https://github.com/rust-lang/rust/issues/61539</a> gets discussed</p>



<a name="167484397"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484397" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484397">(Jun 06 2019 at 14:06)</a>:</h4>
<p>Hi <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span> , time to start, better late than never, right?</p>



<a name="167484446"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484446" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484446">(Jun 06 2019 at 14:06)</a>:</h4>
<p>So, are there any announcements?</p>



<a name="167484570"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484570" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484570">(Jun 06 2019 at 14:08)</a>:</h4>
<p>I'll start off by just noting that I didn't finish the pre-triage, but I <em>did</em> at least get through all the nominated issues that lacked priority labels...</p>



<a name="167484598"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484598" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484598">(Jun 06 2019 at 14:08)</a>:</h4>
<p>As a potentially important note to y'all, cfg(stage0) is no longer a thing, use cfg(bootstrap) instead</p>



<a name="167484607"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484607" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484607">(Jun 06 2019 at 14:08)</a>:</h4>
<p>/me briefly thought (presumably incorrectly) that meant stage0 was no longer a thing</p>



<a name="167484608"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484608" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484608">(Jun 06 2019 at 14:08)</a>:</h4>
<p>hey all <span aria-label="wave" class="emoji emoji-1f44b" role="img" title="wave">:wave:</span> sorry i'm late, my daughter had a school event that ran over</p>



<a name="167484694"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484694" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484694">(Jun 06 2019 at 14:09)</a>:</h4>
<p>Yeah, no, stage0 is still a thing just renamed the cfg flag</p>



<a name="167484700"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484700" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484700">(Jun 06 2019 at 14:09)</a>:</h4>
<p>Also, just note we have <em>14</em> <a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+no%3Aassignee" target="_blank" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+no%3Aassignee">open P-high bugs with no assignee</a></p>



<a name="167484812"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484812" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484812">(Jun 06 2019 at 14:10)</a>:</h4>
<p>one of the ideas where <code>cfg(bootstrap)</code> came up in is not setting it when stage0 is a recent nightly or similar (as opposed to starting the build at stage1) - this could simplify builds for some people</p>



<a name="167484828"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484828" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484828">(Jun 06 2019 at 14:10)</a>:</h4>
<p>(maybe <span class="user-mention" data-user-id="116122">@simulacrum</span> or I should've opened an issue about it)</p>



<a name="167484841"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484841" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484841">(Jun 06 2019 at 14:10)</a>:</h4>
<p>and that's not counting the 14 <a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+label%3Aregression-from-stable-to-beta+no%3Aassignee+-label%3AP-high" target="_blank" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+label%3Aregression-from-stable-to-beta+no%3Aassignee+-label%3AP-high">beta-regressions with no assignee</a> that I didn't manage to pre-triage</p>



<a name="167484863"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484863" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484863">(Jun 06 2019 at 14:11)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> probably not the time to discuss it but that's one of the reasons for the rename :)</p>



<a name="167484895"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484895" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484895">(Jun 06 2019 at 14:11)</a>:</h4>
<p>so arguably that's 28 distinct issues that have no owners</p>



<a name="167484896"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484896" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484896">(Jun 06 2019 at 14:11)</a>:</h4>
<p>bringing it up in case someone gets interested it in and it's less forgotten</p>



<a name="167484918"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167484918" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167484918">(Jun 06 2019 at 14:11)</a>:</h4>
<p>also, <span class="user-mention" data-user-id="116466">@Zoxc</span> merged the removal of the 'gcx/'tcx split (except everything still has the lifetimes. I'm toying around with getting rid of some of that, hopefully I won't step on anyone's toes :P)</p>
<p>main thing is: there's going to be some friction in the future along those lines until the transition is finished - maybe we should discuss on Friday</p>



<a name="167485022"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485022" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485022">(Jun 06 2019 at 14:12)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> you mean you expect there to be a high rate of non-mergable PR collisions, right?</p>



<a name="167485031"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485031" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485031">(Jun 06 2019 at 14:13)</a>:</h4>
<p>and bitrot, yeah</p>



<a name="167485058"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485058" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485058">(Jun 06 2019 at 14:13)</a>:</h4>
<p>right. But the "removal" has been merged?</p>



<a name="167485070"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485070" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485070">(Jun 06 2019 at 14:13)</a>:</h4>
<blockquote>
<p>and that's not counting the 14 <a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+label%3Aregression-from-stable-to-beta+no%3Aassignee+-label%3AP-high" target="_blank" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+label%3Aregression-from-stable-to-beta+no%3Aassignee+-label%3AP-high">beta-regressions with no assignee</a> that I didn't manage to pre-triage</p>
</blockquote>
<p>are these individual crates or have they been "merged" in some sense?</p>



<a name="167485085"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485085" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485085">(Jun 06 2019 at 14:13)</a>:</h4>
<p>I guess we need to go through those one by one</p>



<a name="167485093"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485093" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485093">(Jun 06 2019 at 14:14)</a>:</h4>
<p>yeah, we no longer throw away types that contain inference variables after every e.g. function body typeck</p>



<a name="167485114"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485114" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485114">(Jun 06 2019 at 14:14)</a>:</h4>
<blockquote>
<p>are these individual crates or have they been "merged" in some sense?</p>
</blockquote>
<p>I think there's been some amount of merging</p>



<a name="167485185"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485185" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485185">(Jun 06 2019 at 14:14)</a>:</h4>
<p>they've been merged as much as is feasible without serious investigation, I expect few duplicates</p>



<a name="167485194"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485194" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485194">(Jun 06 2019 at 14:14)</a>:</h4>
<blockquote>
<p>yeah, we no longer throw away types that contain inference variables after every e.g. function body typeck</p>
</blockquote>
<p>So we're paying the memory cost but not yet getting the Development Experience benefit, right?</p>



<a name="167485217"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485217" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485217">(Jun 06 2019 at 14:15)</a>:</h4>
<p>right, memory usage will not go up from now on, but the code will gradually get cleaner</p>



<a name="167485224"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485224" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485224">(Jun 06 2019 at 14:15)</a>:</h4>
<p>okay</p>



<a name="167485247"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485247" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485247">(Jun 06 2019 at 14:15)</a>:</h4>
<p>(assuming we can't do it all at once because oh-god-so-much-code-to-clean-up-I-wish-I-never-did-this-in-the-first-place)</p>



<a name="167485248"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485248" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485248">(Jun 06 2019 at 14:15)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> do you think it would be worthwhile to try to have a concentrated focus on the cleanup?</p>



<a name="167485277"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485277" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485277">(Jun 06 2019 at 14:15)</a>:</h4>
<p>/me notes that down for future reference; this means I can really simplify the chalk integration :)</p>



<a name="167485320"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485320" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485320">(Jun 06 2019 at 14:16)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> let's land a first step from <span class="user-mention" data-user-id="116466">@Zoxc</span> or I and then we can discuss it further</p>



<a name="167485345"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485345" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485345">(Jun 06 2019 at 14:16)</a>:</h4>
<p>I.e. if its mechanical ... then maybe it can be distributed. But that's assuming the work can be parallelized, which is unlikely, right?</p>



<a name="167485351"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485351" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485351">(Jun 06 2019 at 14:16)</a>:</h4>
<p>My opinion is that we should be looking at these regressions / P-high bugs at the moment, not 'gcx/'tcx :)</p>



<a name="167485353"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485353" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485353">(Jun 06 2019 at 14:16)</a>:</h4>
<p>could be a week, could be a month, not sure yet</p>



<a name="167485366"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485366" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485366">(Jun 06 2019 at 14:16)</a>:</h4>
<p>(though I do think that's a good thing to discuss in general)</p>



<a name="167485368"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485368" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485368">(Jun 06 2019 at 14:16)</a>:</h4>
<p>yes sorry I just wanted to mention it in case anyone missed it</p>



<a name="167485372"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485372" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485372">(Jun 06 2019 at 14:16)</a>:</h4>
<p>and then move on :)</p>



<a name="167485388"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485388" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485388">(Jun 06 2019 at 14:16)</a>:</h4>
<blockquote>
<p>My opinion is that we should be looking at these regressions / P-high bugs at the moment, not 'gcx/'tcx :)</p>
</blockquote>
<p>it was mostly the collisions I was worried about</p>



<a name="167485399"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485399" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485399">(Jun 06 2019 at 14:17)</a>:</h4>
<p>those P-high bugs won't get resolved if PR's keep bouncing off of people removing liftetmes.</p>



<a name="167485424"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485424" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485424">(Jun 06 2019 at 14:17)</a>:</h4>
<p>but that's more a question of coordinating the timing of the removal itself</p>



<a name="167485430"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485430" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485430">(Jun 06 2019 at 14:17)</a>:</h4>
<p>Which we do not need to discuss now.</p>



<a name="167485433"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485433" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485433">(Jun 06 2019 at 14:17)</a>:</h4>
<p>So yeah</p>



<a name="167485434"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485434" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485434">(Jun 06 2019 at 14:17)</a>:</h4>
<p>I have some ideas for that, we can discuss later if you want</p>



<a name="167485498"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485498" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485498">(Jun 06 2019 at 14:18)</a>:</h4>
<p>there are 29 open <a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+" target="_blank" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+">P-high T-compiler bugs</a>, 15 of them are assigned</p>



<a name="167485521"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485521" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485521">(Jun 06 2019 at 14:18)</a>:</h4>
<p>JFYI: I'm going through the regressions and I'll take a few notes</p>



<a name="167485523"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485523" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485523">(Jun 06 2019 at 14:18)</a>:</h4>
<p>and as mentioned, 14 are <a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+no%3Aassignee" target="_blank" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+no%3Aassignee">unassigned</a></p>



<a name="167485548"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485548" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485548">(Jun 06 2019 at 14:19)</a>:</h4>
<p>it would be good to try to get owners for each of these</p>



<a name="167485680"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485680" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485680">(Jun 06 2019 at 14:20)</a>:</h4>
<p>I'm going to pick out a few that caught my eye</p>



<a name="167485686"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485686" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485686">(Jun 06 2019 at 14:20)</a>:</h4>
<p>first, "Creating a recursive type with infinite size leads to internal compiler error" <a href="https://github.com/rust-lang/rust/issues/61323" target="_blank" title="https://github.com/rust-lang/rust/issues/61323">#61323</a></p>



<a name="167485721"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485721" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485721">(Jun 06 2019 at 14:20)</a>:</h4>
<p>this is something going astray in the dependency graph code</p>



<a name="167485730"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485730" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485730">(Jun 06 2019 at 14:21)</a>:</h4>
<p>does anyone own that besides <span class="user-mention" data-user-id="124287">@mw</span> ?</p>



<a name="167485740"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485740" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485740">(Jun 06 2019 at 14:21)</a>:</h4>
<p>(<span class="user-mention" data-user-id="124287">@mw</span>  is on parental leave, IIUC)</p>



<a name="167485758"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485758" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485758">(Jun 06 2019 at 14:21)</a>:</h4>
<p>I can own it</p>



<a name="167485771"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485771" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485771">(Jun 06 2019 at 14:21)</a>:</h4>
<p>you have a lot of stuff on your plate</p>



<a name="167485779"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485779" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485779">(Jun 06 2019 at 14:21)</a>:</h4>
<p>is there anyone else you can think of?</p>



<a name="167485851"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485851" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485851">(Jun 06 2019 at 14:22)</a>:</h4>
<p>(in general I've been wondering if we might need a WG-incr-comp, to address some things that have arisen)</p>



<a name="167485854"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485854" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485854">(Jun 06 2019 at 14:22)</a>:</h4>
<p><span class="user-mention" data-user-id="116466">@Zoxc</span> perhaps?</p>



<a name="167485866"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485866" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485866">(Jun 06 2019 at 14:22)</a>:</h4>
<p>(but this not the time to discuss forming a WG, i think. or maybe there already is one, I cannot recall)</p>



<a name="167485892"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485892" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485892">(Jun 06 2019 at 14:22)</a>:</h4>
<p>I don't think we have one</p>



<a name="167485909"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485909" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485909">(Jun 06 2019 at 14:22)</a>:</h4>
<p><span class="user-mention" data-user-id="116466">@Zoxc</span> are you well versed in the dependency-graph code? Would you be able to look at bugs like <a href="https://github.com/rust-lang/rust/issues/61323" target="_blank" title="https://github.com/rust-lang/rust/issues/61323">#61323</a> and <a href="https://github.com/rust-lang/rust/issues/57373" target="_blank" title="https://github.com/rust-lang/rust/issues/57373">#57373</a> ?</p>



<a name="167485924"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485924" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485924">(Jun 06 2019 at 14:23)</a>:</h4>
<blockquote>
<p>you have a lot of stuff on your plate</p>
</blockquote>
<p>I do, I wonder though if somebody would be game to help me :)</p>



<a name="167485932"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485932" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485932">(Jun 06 2019 at 14:23)</a>:</h4>
<p>i.e., I'd be happy to sit for an hour with somebody and try to debug it</p>



<a name="167485940"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485940" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485940">(Jun 06 2019 at 14:23)</a>:</h4>
<p>okay. Myabe I will assign to niko</p>



<a name="167485942"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485942" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485942">(Jun 06 2019 at 14:23)</a>:</h4>
<p>(<em>hint hint</em>)</p>



<a name="167485947"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485947" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> davidtwco <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485947">(Jun 06 2019 at 14:23)</a>:</h4>
<p>I've got a bunch of things I'm already behind on, but I'm always up for adding to that.</p>



<a name="167485957"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485957" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485957">(Jun 06 2019 at 14:23)</a>:</h4>
<p>with the intention that niko should focus on trying to delegate it to someone else</p>



<a name="167485961"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485961" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485961">(Jun 06 2019 at 14:23)</a>:</h4>
<p>okay?</p>



<a name="167485964"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485964" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485964">(Jun 06 2019 at 14:23)</a>:</h4>
<p>lol -- depends how urgent they are I guess :)</p>



<a name="167485969"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167485969" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167485969">(Jun 06 2019 at 14:23)</a>:</h4>
<p>I can probably try and help with the dep graph stuff, yeah</p>



<a name="167486018"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486018" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486018">(Jun 06 2019 at 14:24)</a>:</h4>
<p>(given Niko's help :)</p>



<a name="167486030"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486030" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486030">(Jun 06 2019 at 14:24)</a>:</h4>
<p>let's open a topic to discuss</p>



<a name="167486036"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486036" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486036">(Jun 06 2019 at 14:24)</a>:</h4>
<p>I see no reason it  has to be just 1 person either :)</p>



<a name="167486129"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486129" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486129">(Jun 06 2019 at 14:25)</a>:</h4>
<p>okay, here is the another bug I noticed (I don't think we'll have time to look at many, at this rate): "ICE when trying to match on non-PartialEq slice." <a href="https://github.com/rust-lang/rust/issues/61188" target="_blank" title="https://github.com/rust-lang/rust/issues/61188">#61188</a></p>



<a name="167486216"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486216" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486216">(Jun 06 2019 at 14:26)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> made a recent comment there following up on a question  posed</p>



<a name="167486232"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486232" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486232">(Jun 06 2019 at 14:26)</a>:</h4>
<p>wait there was a backtrace, I haven't read it</p>



<a name="167486236"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486236" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486236">(Jun 06 2019 at 14:26)</a>:</h4>
<p>it might actually be a decent mentorship bug</p>



<a name="167486256"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486256" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486256">(Jun 06 2019 at 14:27)</a>:</h4>
<p>oh it is in <code>mir_borrowck</code></p>



<a name="167486286"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486286" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486286">(Jun 06 2019 at 14:27)</a>:</h4>
<p>weird that it calls into <code>codegen_fulfill_obligation</code></p>



<a name="167486308"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486308" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486308">(Jun 06 2019 at 14:27)</a>:</h4>
<p>(something something we should've renamed that to not say "codegen" :P)</p>



<a name="167486346"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486346" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486346">(Jun 06 2019 at 14:27)</a>:</h4>
<p>is that not an effect of lazily evaluating things via queries?2</p>



<a name="167486414"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486414" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486414">(Jun 06 2019 at 14:28)</a>:</h4>
<p>ehm, sorry, <code>mir_build</code> called from <code>mir_borrowck</code></p>



<a name="167486423"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486423" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486423">(Jun 06 2019 at 14:28)</a>:</h4>
<p>anyway</p>



<a name="167486435"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486435" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486435">(Jun 06 2019 at 14:28)</a>:</h4>
<p>can we get a backtrace with debuginfo? this one is almost useless save for the queries</p>



<a name="167486449"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486449" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486449">(Jun 06 2019 at 14:28)</a>:</h4>
<p>at this rate I guess I will follow niko's example and assign to self with intent to mentor</p>



<a name="167486463"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486463" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486463">(Jun 06 2019 at 14:28)</a>:</h4>
<p>unless someone else wants to do that</p>



<a name="167486466"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486466" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486466">(Jun 06 2019 at 14:28)</a>:</h4>
<p>which I should've read first, it says "<a href="https://github.com/rust-lang/rust/issues/1" target="_blank" title="https://github.com/rust-lang/rust/issues/1">#1</a> [mir_built] processing <code>main</code>"</p>



<a name="167486514"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486514" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486514">(Jun 06 2019 at 14:29)</a>:</h4>
<p>so my suspicion is now that the MIR building code uses <code>Instance::resolve</code> for something that <code>rustc_typeck</code> didn't check</p>



<a name="167486523"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486523" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486523">(Jun 06 2019 at 14:29)</a>:</h4>
<p>right.</p>



<a name="167486560"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486560" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486560">(Jun 06 2019 at 14:30)</a>:</h4>
<p><span class="user-mention" data-user-id="119009">@eddyb</span> keep in mind that the goal right now is not to actually resolve the bug, unless its trivial, but rather to identify someone who can own it</p>



<a name="167486697"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486697" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486697">(Jun 06 2019 at 14:31)</a>:</h4>
<p>sorry, yes. <span class="user-mention" data-user-id="116107">@davidtwco</span> and <span class="user-mention" data-user-id="121053">@varkor</span> seem good candidates for this area</p>



<a name="167486715"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486715" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486715">(Jun 06 2019 at 14:31)</a>:</h4>
<p>or <span class="user-mention" data-user-id="116118">@Matthew Jasper</span> who reported it</p>



<a name="167486718"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486718" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486718">(Jun 06 2019 at 14:31)</a>:</h4>
<p>Unfortunately we do not have time to go through all the P-high bugs in this manner</p>



<a name="167486720"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486720" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486720">(Jun 06 2019 at 14:31)</a>:</h4>
<p>OK, I finished going through the beta regressions. I took summaries in <a href="https://hackmd.io/nSPXVbUqSE-5necPlgrobw" target="_blank" title="https://hackmd.io/nSPXVbUqSE-5necPlgrobw">this hackmd doc</a> -- the good news is that many are expected or seem similar. But there are a few question marks. I'll try to organize a bit better.</p>



<a name="167486809"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486809" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486809">(Jun 06 2019 at 14:32)</a>:</h4>
<p>(If <span class="user-mention" data-user-id="133692">@QuietMisdreavus</span> is around, perhaps they can confirm whether there have been any rustdoc fixes that would cause us to detect more tests than we did before)</p>



<a name="167486818"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486818" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486818">(Jun 06 2019 at 14:32)</a>:</h4>
<p>in particular, I want to make sure we get to the backport nominations before we run out of time</p>



<a name="167486824"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486824" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486824">(Jun 06 2019 at 14:32)</a>:</h4>
<p>also cc <span class="user-mention" data-user-id="210316">@Guillaume</span></p>



<a name="167486826"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486826" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486826">(Jun 06 2019 at 14:32)</a>:</h4>
<p>so lets look at those now</p>



<a name="167486883"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486883" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486883">(Jun 06 2019 at 14:33)</a>:</h4>
<p>first, <a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=label%3Abeta-nominated+label%3AT-compiler" target="_blank" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=label%3Abeta-nominated+label%3AT-compiler">beta-nominations for T-compiler</a></p>



<a name="167486903"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486903" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486903">(Jun 06 2019 at 14:33)</a>:</h4>
<p>"Fix regression 61475" <a href="https://github.com/rust-lang/rust/issues/61500" target="_blank" title="https://github.com/rust-lang/rust/issues/61500">#61500</a></p>



<a name="167486921"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486921" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486921">(Jun 06 2019 at 14:33)</a>:</h4>
<blockquote>
<p>(If <span class="user-mention silent" data-user-id="133692">QuietMisdreavus</span> is around, perhaps they can confirm whether there have been any rustdoc fixes that would cause us to detect more tests than we did before)</p>
</blockquote>
<p>fwiw I think I checked all of those and it's breaking on tests that _ran_ successfully on stable</p>



<a name="167486974"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486974" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> QuietMisdreavus <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486974">(Jun 06 2019 at 14:34)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> there was a pulldown-cmark update that had a bug</p>



<a name="167486996"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167486996" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167486996">(Jun 06 2019 at 14:34)</a>:</h4>
<p>for reference, the bug that fixes is "regression: expected expression, found <code>&amp;&amp;</code>" <a href="https://github.com/rust-lang/rust/issues/61475" target="_blank" title="https://github.com/rust-lang/rust/issues/61475">#61475</a></p>



<a name="167487000"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487000" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> QuietMisdreavus <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487000">(Jun 06 2019 at 14:34)</a>:</h4>
<p>i approved a backport that updated it again to fix that bug</p>



<a name="167487007"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487007" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487007">(Jun 06 2019 at 14:34)</a>:</h4>
<p><span class="user-mention" data-user-id="133692">@QuietMisdreavus</span> yes that was listed as possibly fixing some of the regressions</p>



<a name="167487014"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487014" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487014">(Jun 06 2019 at 14:34)</a>:</h4>
<p>we should test though...</p>



<a name="167487018"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487018" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487018">(Jun 06 2019 at 14:34)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> for <a href="https://github.com/rust-lang/rust/issues/61476" target="_blank" title="https://github.com/rust-lang/rust/issues/61476">#61476</a> I think we could grep the history for changes that mention <code>Borrow</code> in the diff - not sure I remember how to but I can do it if you want</p>



<a name="167487075"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487075" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487075">(Jun 06 2019 at 14:35)</a>:</h4>
<blockquote>
<p>fwiw I think I checked all of those and it's breaking on tests that _ran_ successfully on stable</p>
</blockquote>
<p>oh? it didn't look that way to me. but I'll double check.</p>



<a name="167487088"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487088" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487088">(Jun 06 2019 at 14:35)</a>:</h4>
<p>...</p>



<a name="167487115"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487115" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487115">(Jun 06 2019 at 14:35)</a>:</h4>
<p>Okay so I'll let this conversation run its course and then restart the nominations.</p>



<a name="167487149"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487149" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487149">(Jun 06 2019 at 14:35)</a>:</h4>
<p>sorry :)</p>



<a name="167487218"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487218" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487218">(Jun 06 2019 at 14:36)</a>:</h4>
<p>no its okay, you posted that hackmd, I probably should have let there be some time to discuss it</p>



<a name="167487257"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487257" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487257">(Jun 06 2019 at 14:36)</a>:</h4>
<p>but I also got a side-channel request asking that we not miss the backport nominations</p>



<a name="167487265"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487265" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487265">(Jun 06 2019 at 14:36)</a>:</h4>
<p>so I was rushing it</p>



<a name="167487327"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487327" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487327">(Jun 06 2019 at 14:37)</a>:</h4>
<p>is there more to discuss then regarding the beta regressions? I know everything looks a bit out of control.</p>



<a name="167487329"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487329" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487329">(Jun 06 2019 at 14:37)</a>:</h4>
<p><span class="user-mention" data-user-id="116122">@simulacrum</span> am I correct that the "start" links are stable? (e.g., in <a href="https://github.com/rust-lang/rust/issues/61562" target="_blank" title="https://github.com/rust-lang/rust/issues/61562">#61562</a>)?</p>



<a name="167487343"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487343" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487343">(Jun 06 2019 at 14:37)</a>:</h4>
<blockquote>
<p>is there more to discuss then regarding the beta regressions? I know everything looks a bit out of control.</p>
</blockquote>
<p>let's do the beta nominations</p>



<a name="167487355"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487355" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487355">(Jun 06 2019 at 14:38)</a>:</h4>
<p>Please make sure to discuss the stable nominations</p>



<a name="167487376"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487376" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487376">(Jun 06 2019 at 14:38)</a>:</h4>
<p>we can do the regressions a bit after if needed</p>



<a name="167487411"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487411" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487411">(Jun 06 2019 at 14:38)</a>:</h4>
<p>They are arguably most important</p>



<a name="167487416"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487416" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487416">(Jun 06 2019 at 14:38)</a>:</h4>
<p>okay so <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818/near/167486903" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818/near/167486903">link to first beta nom</a></p>



<a name="167487491"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487491" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487491">(Jun 06 2019 at 14:39)</a>:</h4>
<p>it seems pretty safe to backport to me, and the votes so far seem to agree.</p>



<a name="167487528"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487528" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487528">(Jun 06 2019 at 14:39)</a>:</h4>
<p>beta backport? : "Turn turbo <span aria-label="fish" class="emoji emoji-1f41f" role="img" title="fish">:fish:</span> <span aria-label="ice cream" class="emoji emoji-1f368" role="img" title="ice cream">:ice_cream:</span> into an error" <a href="https://github.com/rust-lang/rust/issues/61189" target="_blank" title="https://github.com/rust-lang/rust/issues/61189">#61189</a></p>



<a name="167487621"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487621" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487621">(Jun 06 2019 at 14:40)</a>:</h4>
<p>(this has also been nominated for a stable backport; but lets cover beta on its own first.)</p>



<a name="167487673"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487673" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487673">(Jun 06 2019 at 14:41)</a>:</h4>
<p>it seems sensible to beta backport that</p>



<a name="167487780"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487780" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487780">(Jun 06 2019 at 14:42)</a>:</h4>
<p>okay lets now ask the follow-up Q</p>



<a name="167487796"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487796" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487796">(Jun 06 2019 at 14:42)</a>:</h4>
<p>stable backport? : "Turn turbo <span aria-label="fish" class="emoji emoji-1f41f" role="img" title="fish">:fish:</span> <span aria-label="ice cream" class="emoji emoji-1f368" role="img" title="ice cream">:ice_cream:</span> into an error" <a href="https://github.com/rust-lang/rust/issues/61189" target="_blank" title="https://github.com/rust-lang/rust/issues/61189">#61189</a></p>



<a name="167487845"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487845" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487845">(Jun 06 2019 at 14:43)</a>:</h4>
<p>yeah okay I guess I don't have a problem with a stable backport either</p>



<a name="167487925"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487925" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487925">(Jun 06 2019 at 14:44)</a>:</h4>
<p>but what was <a href="https://github.com/rust-lang/rust/issues/61085" target="_blank" title="https://github.com/rust-lang/rust/issues/61085">#61085</a> then?</p>



<a name="167487942"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487942" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487942">(Jun 06 2019 at 14:44)</a>:</h4>
<p>oh oh I see, that didn't land</p>



<a name="167487947"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487947" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Esteban Küber <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487947">(Jun 06 2019 at 14:44)</a>:</h4>
<p>Stable predates the defid-&gt; res change right?</p>



<a name="167487949"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487949" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487949">(Jun 06 2019 at 14:44)</a>:</h4>
<p>It seems <em>ok</em> to stable backport. I'm not sure how strongly motivated it is if there aren't other things.</p>



<a name="167487988"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487988" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487988">(Jun 06 2019 at 14:44)</a>:</h4>
<p>fwiw once y'all approve then release team will decide whether to actually release</p>



<a name="167487993"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167487993" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167487993">(Jun 06 2019 at 14:44)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> yeah the impression I have is that we're just supposed to make individual decisions about what to put into stable branch, and then release team decides whether its actually worth putting out a point release?</p>



<a name="167488034"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488034" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488034">(Jun 06 2019 at 14:45)</a>:</h4>
<p>at this point I'm not expecting one but I haven't investigated fall out of all the stable backport reasons too thoroughly yet</p>



<a name="167488049"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488049" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488049">(Jun 06 2019 at 14:45)</a>:</h4>
<p>or is the decision about whether it even goes into the stable branch itself <strong>also</strong> the purview of the release team?</p>



<a name="167488112"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488112" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488112">(Jun 06 2019 at 14:46)</a>:</h4>
<p>anyway I digressed</p>



<a name="167488136"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488136" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488136">(Jun 06 2019 at 14:46)</a>:</h4>
<p>last beta nomination: "Fix overflowing literal lint in loops" <a href="https://github.com/rust-lang/rust/issues/61098" target="_blank" title="https://github.com/rust-lang/rust/issues/61098">#61098</a></p>



<a name="167488241"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488241" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488241">(Jun 06 2019 at 14:47)</a>:</h4>
<p>okay, all have been beta accepted, and <a href="https://github.com/rust-lang/rust/issues/61189" target="_blank" title="https://github.com/rust-lang/rust/issues/61189">#61189</a> was also stable accepted.</p>



<a name="167488245"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488245" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488245">(Jun 06 2019 at 14:47)</a>:</h4>
<p>/me shows up</p>



<a name="167488253"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488253" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488253">(Jun 06 2019 at 14:47)</a>:</h4>
<p>lets go through the other stable nominations now, and then we'll do WG-checkin</p>



<a name="167488313"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488313" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488313">(Jun 06 2019 at 14:48)</a>:</h4>
<p>stable backport? : "Fix more escaping ReScopes" <a href="https://github.com/rust-lang/rust/issues/60765" target="_blank" title="https://github.com/rust-lang/rust/issues/60765">#60765</a></p>



<a name="167488348"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488348" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488348">(Jun 06 2019 at 14:49)</a>:</h4>
<p>(I infer this is already in beta due to how the beta-cut was timed, right?)</p>



<a name="167488380"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488380" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488380">(Jun 06 2019 at 14:49)</a>:</h4>
<p>Is this a soundness issue fix?</p>



<a name="167488381"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488381" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488381">(Jun 06 2019 at 14:49)</a>:</h4>
<p>I'm not so sure we need to backport this one</p>



<a name="167488387"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488387" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488387">(Jun 06 2019 at 14:49)</a>:</h4>
<p>the original issue does not have a tag to that effect</p>



<a name="167488468"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488468" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488468">(Jun 06 2019 at 14:50)</a>:</h4>
<p>no, just an ICE fix</p>



<a name="167488491"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488491" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488491">(Jun 06 2019 at 14:50)</a>:</h4>
<p>(but an ICE fix that unbreaks stable working code?)</p>



<a name="167488546"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488546" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488546">(Jun 06 2019 at 14:51)</a>:</h4>
<blockquote>
<p>Is this a soundness issue fix?</p>
</blockquote>
<p>it might be -- that old code was flat out wrong</p>



<a name="167488561"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488561" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488561">(Jun 06 2019 at 14:51)</a>:</h4>
<p>what do people think? THe original bug was a stable-to-stable regression, yielding an ICE on working code</p>



<a name="167488576"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488576" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488576">(Jun 06 2019 at 14:51)</a>:</h4>
<p>I was very happy when I rebased over this PR with the work i'm doing on improving region inference and opaque types :)</p>



<a name="167488658"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488658" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488658">(Jun 06 2019 at 14:52)</a>:</h4>
<p>the risk itself seems pretty low, I guess</p>



<a name="167488659"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488659" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488659">(Jun 06 2019 at 14:52)</a>:</h4>
<p>I marked <span aria-label="shrug" class="emoji emoji-1f937" role="img" title="shrug">:shrug:</span> because this is "just" an ICE fix, rather than a soundness one. I would vote <span aria-label="back" class="emoji emoji-1f519" role="img" title="back">:back:</span> if there was a known stable point release coming but I don’t think we have plans for one quite yet?</p>



<a name="167488689"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488689" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488689">(Jun 06 2019 at 14:53)</a>:</h4>
<blockquote>
<p>I would vote <span aria-label="back" class="emoji emoji-1f519" role="img" title="back">:back:</span> if there was a known stable point release coming but I don’t think we have plans for one quite yet?</p>
</blockquote>
<p><span class="user-mention" data-user-id="123586">@nagisa</span>  you should focus on the individual fix; not make decisions based on the chances of a point release.</p>



<a name="167488698"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488698" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488698">(Jun 06 2019 at 14:53)</a>:</h4>
<blockquote>
<p>I would vote <span aria-label="back" class="emoji emoji-1f519" role="img" title="back">:back:</span> if there was a known stable point release coming but I don’t think we have plans for one quite yet?</p>
</blockquote>
<p>I think, see above, that the intent is that we should just try to put stable channel into an idealized state</p>



<a name="167488705"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488705" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488705">(Jun 06 2019 at 14:53)</a>:</h4>
<p>and release team decides whether to release</p>



<a name="167488713"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488713" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488713">(Jun 06 2019 at 14:53)</a>:</h4>
<p>When making stable backport decisions I would assume that there _is_ a point release because we put everything approved in one if it does happen</p>



<a name="167488714"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488714" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488714">(Jun 06 2019 at 14:53)</a>:</h4>
<p>The release team will decide if the total amount of stable backports merit a point release</p>



<a name="167488725"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488725" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488725">(Jun 06 2019 at 14:53)</a>:</h4>
<p>(and if not, then nothing)</p>



<a name="167488829"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488829" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488829">(Jun 06 2019 at 14:54)</a>:</h4>
<p>(right, okay, see also my above question about whether the stable channel itself is maintained by T-compiler or by T-release )</p>



<a name="167488855"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488855" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488855">(Jun 06 2019 at 14:54)</a>:</h4>
<p>okay well I guess we'll go ahead and approve this for stable backport</p>



<a name="167488876"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488876" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488876">(Jun 06 2019 at 14:55)</a>:</h4>
<p>last one</p>



<a name="167488888"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488888" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488888">(Jun 06 2019 at 14:55)</a>:</h4>
<p>stable backport? : "Constrain all regions in the concrete type for an opaque type" <a href="https://github.com/rust-lang/rust/issues/60449" target="_blank" title="https://github.com/rust-lang/rust/issues/60449">#60449</a></p>



<a name="167488943"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167488943" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167488943">(Jun 06 2019 at 14:55)</a>:</h4>
<p>stable branch is maintained by T-release with T-compiler approving new commits onto it (but not generally actually landing them)</p>



<a name="167489074"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489074" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489074">(Jun 06 2019 at 14:57)</a>:</h4>
<p>I nominated this, but that doesn't mean I was endorsing it. :)</p>



<a name="167489110"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489110" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489110">(Jun 06 2019 at 14:57)</a>:</h4>
<p>in particular, I'm not sure whether there's any stable-to-stable regression this fixes.</p>



<a name="167489142"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489142" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489142">(Jun 06 2019 at 14:57)</a>:</h4>
<p>oh no, <a href="https://github.com/rust-lang/rust/issues/57464" target="_blank" title="https://github.com/rust-lang/rust/issues/57464">#57464</a> was one</p>



<a name="167489151"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489151" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489151">(Jun 06 2019 at 14:57)</a>:</h4>
<p>so never mind me</p>



<a name="167489179"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489179" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489179">(Jun 06 2019 at 14:58)</a>:</h4>
<p>okay lets stable backport then</p>



<a name="167489211"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489211" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489211">(Jun 06 2019 at 14:58)</a>:</h4>
<p>(beta branch is also maintained by T-release but we don't require full team approval to land beta backports and just do them in rollups when various teams approve backports)</p>



<a name="167489215"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489215" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489215">(Jun 06 2019 at 14:58)</a>:</h4>
<p>Okay taht's all the backports</p>



<a name="167489232"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489232" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489232">(Jun 06 2019 at 14:58)</a>:</h4>
<p>Hey <span class="user-mention" data-user-id="124288">@oli</span> you want to do a WG-mir-opt check in within ... 2 minutes ?</p>



<a name="167489267"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489267" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489267">(Jun 06 2019 at 14:58)</a>:</h4>
<p>(master branch is also sorta maintained by t-release in terms of managing the bors queue)</p>



<a name="167489269"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489269" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489269">(Jun 06 2019 at 14:58)</a>:</h4>
<ul>
<li>
<p>const propagation (by Wesley Wiser) on mir opt level 2<br>
    * some great compile-time speedups due to llvm and later MIR passes having less to do<br>
    * <a href="https://perf.rust-lang.org/compare.html?start=7cdaffd7962c4aae0cadd82baa241901b03f9458&amp;end=78f9292a51479346f19ce2c71bdb0db551ce8fe5" target="_blank" title="https://perf.rust-lang.org/compare.html?start=7cdaffd7962c4aae0cadd82baa241901b03f9458&amp;end=78f9292a51479346f19ce2c71bdb0db551ce8fe5">https://perf.rust-lang.org/compare.html?start=7cdaffd7962c4aae0cadd82baa241901b03f9458&amp;end=78f9292a51479346f19ce2c71bdb0db551ce8fe5</a> (active PR) has some  regressions (up to 4% though)</p>
</li>
<li>
<p>rewrite loads of recursive Place algos imperatively (by Santiago Pastorino)</p>
</li>
<li>WIP PR by Santiago Pastorino for making Place a <code>struct</code> instead of an <code>enum</code> (preliminary work for making projections a slice instead of a recursive <code>enum</code>)</li>
</ul>



<a name="167489296"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489296" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489296">(Jun 06 2019 at 14:58)</a>:</h4>
<p>so we've been busy</p>



<a name="167489318"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489318" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489318">(Jun 06 2019 at 14:59)</a>:</h4>
<p>some perf tests have 30% improvements</p>



<a name="167489331"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489331" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489331">(Jun 06 2019 at 14:59)</a>:</h4>
<p><em>per PR</em></p>



<a name="167489336"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489336" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489336">(Jun 06 2019 at 14:59)</a>:</h4>
<p><span class="user-mention" data-user-id="124288">@oli</span> can you cc me on Place PRs? I might not review but I still am curious what's being done</p>



<a name="167489342"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489342" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489342">(Jun 06 2019 at 14:59)</a>:</h4>
<p>ok</p>



<a name="167489356"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489356" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489356">(Jun 06 2019 at 14:59)</a>:</h4>
<p><span class="user-mention" data-user-id="124288">@oli</span>  is that 30% I-slow or I-compiletime?</p>



<a name="167489370"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489370" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489370">(Jun 06 2019 at 14:59)</a>:</h4>
<p>compile-time</p>



<a name="167489382"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489382" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489382">(Jun 06 2019 at 14:59)</a>:</h4>
<p>(compile time, I presume, since we don't measure the latter -- unfortunately!)</p>



<a name="167489383"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489383" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489383">(Jun 06 2019 at 14:59)</a>:</h4>
<p>yeah that makes more sense =) 30% I-slow improvements would be ludicrous...</p>



<a name="167489476"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489476" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489476">(Jun 06 2019 at 15:00)</a>:</h4>
<p>(something something lolbench)</p>



<a name="167489489"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489489" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489489">(Jun 06 2019 at 15:00)</a>:</h4>
<p>comments on <a href="https://github.com/rust-lang/rust/pull/61532" target="_blank" title="https://github.com/rust-lang/rust/pull/61532">https://github.com/rust-lang/rust/pull/61532</a> would be great since we have a 4% regression that we have no idea where it comes from</p>



<a name="167489505"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489505" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489505">(Jun 06 2019 at 15:00)</a>:</h4>
<p>that's it from wg-mir-opt</p>



<a name="167489567"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489567" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489567">(Jun 06 2019 at 15:01)</a>:</h4>
<p><span class="user-mention" data-user-id="124288">@oli</span> you know, I should be in that WG, and I should be focusing on some of that stuff too - let's talk elsewhere after the meeting ;)</p>



<a name="167489573"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489573" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489573">(Jun 06 2019 at 15:01)</a>:</h4>
<p>thanks <span class="user-mention" data-user-id="124288">@oli</span></p>



<a name="167489591"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167489591" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167489591">(Jun 06 2019 at 15:01)</a>:</h4>
<p>okay then, thanks everyone in <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span>  for attending</p>



<a name="167490136"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167490136" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167490136">(Jun 06 2019 at 15:07)</a>:</h4>
<p><span class="user-mention" data-user-id="124288">@oli</span> wg-grammar wants <span class="user-mention" data-user-id="119009">@eddyb</span> all too ourselves =P  Our precious...!</p>



<a name="167490484"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167490484" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167490484">(Jun 06 2019 at 15:11)</a>:</h4>
<p><span class="user-mention" data-user-id="126931">@centril</span> secure some funding :P</p>



<a name="167490830"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167490830" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167490830">(Jun 06 2019 at 15:14)</a>:</h4>
<p>Argh we totally skipped the <a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+label%3AI-nominated+label%3AT-compiler" target="_blank" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+label%3AI-nominated+label%3AT-compiler">I-nominated list</a></p>



<a name="167490913"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167490913" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167490913">(Jun 06 2019 at 15:15)</a>:</h4>
<p>luckily I think everything there I cared about can wait until next week</p>



<a name="167491579"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167491579" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> QuietMisdreavus <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167491579">(Jun 06 2019 at 15:22)</a>:</h4>
<p>i did a quick check of the rustdoc ICEs by trying to run <del>the same thing</del> some of the affected crates on stable/beta/nightly, and the crates worked (or at least didn't ICE) on stable, ICE'd on beta, and worked (or at least didn't ICE) on nightly</p>



<a name="167492400"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-06-06%20%2354818/near/167492400" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-06-06.20.2354818.html#167492400">(Jun 06 2019 at 15:31)</a>:</h4>
<p>okay, great, then once we have a new beta with the pulldown-cmark backport then we can probably close those once confirmed fixed</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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